Razor hone and holder



April 1942- s. K. MORROW 2,278,553

RAZOR HONE AND HOLDER Filed Oct. 24, 1940 lnvenior': SAT K MORROW fim. M

Patented Apr. 7, 1942 UNITED STATES PATENT OFFICE 2,278,553 RAZOR BONEAND HOLDER- Sat K. Morrow, Bent County, Colo.

Application October 24, 1940, Serial No. 362,488

1 Claim.

This invention relates to improvements in razor bones and holders.

Barbers employing the ordinary razors find it necessary to hone andstrop the same at frequent intervals in order to maintain them sharp.The

razors are nearly always hollow ground and are honed by moving the bladeover the flat abrading surface of the hone. The angle of the surfaceadjacent the cutting edge is determined by the thickness of the razorback and the width of the blade and since material is removed from theblade each time it is honed, the angle changes gradually and in acomparatively short time the area of the surface that must be cut awayduring the sharpening increases thereby greatly increasing the time andlabor necessary to sharpen the blade.

It is the object of this invention to produce a hone of suchconstruction that it can be employed for the purpose of removing thebead between the bevel cutting edge and the hollow ground surface insuch a way as to decrease the width of the bevel and thereby decreasethe time and labor necessary to sharpen the razor blade.

The above object is attained by means of a construction and anarrangement of parts that will now be described in detail and for thispurpose reference will be had to the accompanying drawing in which theimproved hone and holder have been illustrated, and in which:

Figure l is a side elevation showing a razor hone holder with a honepositioned therein, a portion of the holder being shown in section takenon line I --I, Figure 2;

Figure 2 is a top plan view' of the hone and holder shown in Figure 1;

Figure 3 is a fragmentary view similar to that shown in Figure 1, andshows the position of a razor blade during the honing operation;

Figure 4 is a transverse section of a razor blade, to a somewhatenlarged scale, showing the angular relation of the bevelled sides ofthe cutting edge and the relation of the sides with the razor blade; I

Figure 5 shows the position of th razor blade and hone during theoperation of removing the bead;

Figure 6 is a view similar to that shown in Figure 5 and shows the shapeof the blade after the bead has been removed to the desired extent;

Figure '7 is a section similar to that shown in Figure 4 and shows thedecreased width of the bevelled surfaces adjacent the cutting edge; and

of a bone constructed in accordance with this invention.

In the drawing reference numeral l0 designates a wooden block which isprovided in its upper surface with a recess ll of the proper depth andsize to receive a hone I2. The hone is of the usual size and shape andis somewhat thicker than the depth of the recess so that the abradingsurface I3 thereof will project over the walls of the recess in themanner shown in Figure 1. One end of the holder extends a considerabledistance beyond the end of the recess H. Extending along the inner endof the hone in a guide surface It that has been shown as outwardly anddownwardly inclined with its highest point substantially at the level ofthe abrading surface. Extending upwardly from the outer edge of thesurface 14 is a vertical guide surface l5. A razor blade I6 has beenshown in position with the lower corner of its back resting on thesurface I4 and its back engaging the vertical surface l5. It will beapparent that the lower rear corner of the blade is on a level below theabrading surface and therefore the bevel that is obtained byreciprocating the blade when positioned in the manner shown in Figures1, 5 and 6 will be different from the corresponding bevel obtained whenthe blade is honed by moving it over the abrading surface l3 in theposition shown in Figure 3.

In order to more clearly show the relationship of the bevel surfaceswith respect to the back of the blade, a somewhat enlarged section of ablade has been shown in Figure 4 in which the lines a -b represent theplane of the abrading surface l3. It will be seen that adjacent thecutting edge two bevel surfaces I! are formed and the width of thesesurfaces depends to a great extent on the concavity of the sides of therazor blade. The line Where the bevel surfaces intersect the concavesurfaces have been indicated by reference numeral l8 and will bereferred to herein as beads. It will be apparent from an inspection ofFigure 4 that as the blade is repeatedly honed, the material at thecorners of the back will wear away and the bevel surfaces I! will alsobe moved closer to the center of the blade whereby they will be widenedand this widening naturally increases the amount of material to beremoved during each honing operation.

In Figure 5 the blade has been shown as it appears before the operationfor removing the beads I8 has commenced. It will be seen that thecutting edge of the blade is above the abrad- Figure 8 shows afragmentary side elevation 55 ing surface of the hone and therefore whenthe blade is reciprocated with its back in position against the wall IS,the bead I8 is being gradually removed and finally the blade assumes theappearance shown in Figure 6 in which the bevel surfaces I1 have beenreduced to approximately one-half the width shown in the Figure 5.

After the blade has been changed to the shape shown in Figure 6, it ispositioned on the hone as shown in Figure 3, and the honing carried outin the usual manner, until the desired edge has been formed.

In Figure 7 the appearance of the blade after it has been treated toremove the beads I8 and then sharpened has been shown and from thisfigure it will be apparent that the width of the bevel surface H hasbeen greatly reduced, whereby the speed at which a blade can besharpened will be greatly increased over that of a blade having theappearance shown in Figure 5.

Although the surface M has been shown inolined, this is not essential asit may be parallel with the abrading surface in the manner shown inFigure 6, because the lower edge of the back of the blade engages a verynarrow portion of the surface and it is merely the position of thisparticular portion of the surface that is material.

In Figure 8 a specially constructed hone 12a has been shown. In thishone, which is intended to be used without a holder, the inclinedsurface Ida and the vertical surface la are both formed by the materialof the hone which can therefore be used for removing the bead and alsofor sharpening the razor blade in the same manner as when an ordinaryhone is employed in connection with a holder.

From the above description it will be apparent that by providing aholder with two angularly related guide surfaces positioned with theirlongitudinal elements parallel with the abrading surface of the hone andhaving one of the surfaces positioned beneath the abrading surface, anassembly is produced in which the blade is guided for the purpose .ofremoving the bead between the bevelled cutting edge and the concavesurfaces of the blade and which can therefore be used for reconditioningrazor blades that would otherwise have to be sent to a grindingembodiment for regrinding.

Having described the invention What is claimed as new is:

A razor hone holder and razor guide for use it reconditioning ordinaryrazor blades, comprising a block of material having its upper surfaceprovided with a recess for the reception of a razor hone, the recessextending inwardly from one end of the block and terminating a shortdistance from the other end thereof, the walls forming the sides of therecess being lower than the upper surface of the end of the block, theupper surface of the end wall of the recess having a guide notch whosebottom surface intersects the end wall surface and the upper surfaces ofthe side walls, the bottom of the guide notch being positioned whollybelow the upper surface of the end wall of the holder, and below thetops of the side walls of the recess, the bottom surface of the guidenotch terminating in an upwardly ranging wall that in turn intersectsthe upper surface of the end wall of the block, the guide notch servingto receive the lower corner of the back of a razor blade to position andguide it relative to the upper surface of a hone positioned in therecess.

SAT K. MORROW.

